Jeffery, Currently Apple does not support SCO connections in their Bluetooth implementation. So that's that. As far as developing a driver for your specific Bluetooth device, if it be USB or PCI based I still have not been able to find the documentation for that. Maybe this is what you are asking and if so, maybe someone else has the answer. Because I've been looking for the same thing. Thanks Michael On Nov 4, 2003, at 11:34 AM, jeffery wrote: I!&m newbie for Bluetooth developer in Mac OS X, I search the Bluetooth document s on the Apple website and in the XCode help , I only could see the document how to write a user mode application to communication with Bluetooth device, If I want to write a bridge kernel mode driver that will register to OS as another kind of device like speaker or microphone , So I need to write a kernel mode driver to communicate with my Bluetooth dongle , Is it possible? Also why the Apple didn!&t release IOBluetooth framework!&s source code in kernel? I cannot find it in Darwin project ! Any comment will be appreciated _______________________________________________ bluetooth-dev mailing list | bluetooth-dev@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.